I’ve been having this problem with twitterstream on IE8, the authorize button on users settings was not working on IE8, you’d click it but nothing happens while it worked on FF and chromse. I figured out how to fix it.
In tweetstream-functions.php, instead of wrapping an input tag with a link (a) tag, you should use an input tag with onclick event.
I was trying to post the code and its replacement here but it is getting stripped out, any ideas how I can share this with everyone?
Once done the button will work on IE8 and all other browsers.